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A certain freely falling object requires1.05s to travel the last39.5m before it hits the ground. From what height above the ground did it fall?
m
A 48.9 kg pole vaulter running at 13.0 m/s vaults over the bar. Assuming that the vaulter's horizontal component of velocity over the bar is 1.7 m/s and disregarding air resistance, how high was jump.
Standing on ground 3.5 from the wall of a building, you want to throw a package from your 1.6 shoulder level to someone in a second-floor window 4.5 above the ground.
An iceboat is gliding on a frozen lake with no propulsive force being applied. Does the horizontal momentum of the boat Change
two buses started from the same depot at the same time and traveled in opposite directions. after traveling 4 hours
An ice hockey puck is sliding along the vertical wall as shown on the picture (top view shown). Puck is moving in the horizontal plane only. Find the velocity of the puck at that point
A converging lens with a focal length of 89.0cm forms an image of a 3.25cm -tall real object that is to the left of the lens. Where are the object and image located in relation to the lens
A 100-coil spring has a spring constant of 560 N/m. It is cut into four shorter springs, each of which has 25 coils. What is the angular frequency of the motion
A horizontal spring with k = 72N/m has one end attached to a wall and the other end free. find maximum spring compression
Find out the magnitude and direction of forces
An empty boat is placed in a freshwater lake and a mark is painted on the hull at the waterline, a line corresponding to the surface of the water when the vessel is floating upright, where is the new waterline mark located on hull of the boat
An artificial satellite is in a circular orbit around a planet of radius r = 5.55 x 103 km at a distance d=520km from the planet's surface. What is the average density of the planet
An emphysema patient is breathing pure O2 through a face mask. how long will the cylinder last
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